JDK 17 - What's new features in Java 17

Java 17 is a feature release that will obsolete Java 16 and was Java's long-term support (LTS) update. Java 17 release date : September 2021

Long-term support (LTS) is a product lifecycle management policy in which a stable release of computer software is maintained for a longer period of time than the standard edition. The term is typically reserved for open-source software, where it describes a software edition that is supported for months or years longer than the software's standard edition.

Java 17 is still to be built, take a look at the latest Java version: Java 15 functionality and the next upcoming Java 16 functionality upgrade to get an idea of what will be in JDK 17

Take a look at our suggested post on Java :

Java 16 Features

Java 15 Features

Java 14 Features

Java 11 Features

Java 8 Interview Questions and Answers

Java 11 Interview Questions and Answers

Java 9 - Jshell

Quick glance on earlier Java Versions Features :

Java 14 Features - JDK 14

JDK Enhancement Proposals (JEP) has targeted JDK 14 release for 17 March 2020 for below features :

Java 13 Features - JDK 13

Java 12 Features

Shenandoah: A Low-Pause-Time Garbage Collector (Experimental)
Microbenchmark Suite
Switch Expressions (Preview)
JVM Constants API
One AArch64 Port, Not Two
Default CDS Archives
Abortable Mixed Collections
Promptly Return Unused Committed Memory from G1

Java 11 Features

Java 10 Features

Local-variable type inference
Experimental Java-based JIT compiler.This is the integration of the Graal dynamic compiler for the Linux x64 platform
Application class-data sharing. This allows application classes to be placed in the shared archive to reduce startup and footprint for Java applications
Time-based release versioning
Parallel full GC
Garbage-collector interface
Additional Unicode language-tag extensions
Root certificates
Thread-local handshakes
Heap allocation on alternative memory devices
Remove the native-header generation tool - javah
Consolidate the JDK forest into a single repository

Java 9 Features

Modularization of the JDK under Project Jigsaw (Java Platform Module System)
jshell: The Java Shell (a Java REPL)
Ahead-of-time compilation
XML catalogs
More concurrency updates. It includes a Java implementation of Reactive Streams, including a new Flow class that included the interfaces previously provided by Reactive Streams
Variable handles: define a standard means to invoke the equivalents of various java.util.concurrent.atomic and sun.misc.Unsafe operations
jlink: The Java Linker: create a tool that can assemble and optimize a set of modules and their dependencies into a custom run-time image. It effectively allows to produce a fully usable executable including the JVM to run it
JavaDB was removed from JDK
HiDPI graphics: automatic scaling and sizing

Java 8 Features

Language-level support for lambda expressions and default methods (virtual extension methods) which allow the addition of methods to interfaces without breaking existing implementations.
Project Nashorn, a JavaScript runtime which allows developers to embed JavaScript code within applications
Annotation on Java types
Unsigned integer arithmetic
Repeating annotations
Date and time API
Statically-linked JNI libraries
Launch JavaFX applications (direct launching of JavaFX application JARs)
Remove the permanent generation

Java 7 Features

JVM support for dynamic languages
Compressed 64-bit pointers
Strings in switch
Automatic resource management in try-statement
Improved type inference for generic instance creation, aka the diamond operator <>
Simplified varargs method declaration
Binary integer literals
Allowing underscores in numeric literals
Catching multiple exception types and rethrowing exceptions with improved type checking
Concurrency utilities
New file I/O library adding support for multiple file systems
Timsort is used to sort collections and arrays of objects instead of merge sort
Library-level support for elliptic curve cryptography algorithms
An XRender pipeline for Java 2D, which improves handling of features specific to modern GPUs
New platform APIs for the graphics features
Enhanced library-level support for new network protocols, including SCTP and Sockets Direct Protocol
Upstream updates to XML and Unicode
Java deployment rule sets

Java 6 Features

Support for older Win9x versions dropped
Scripting Language Support
Dramatic performance improvements for the core platform, and Swing.
Improved Web Service support through JAX-WS.
JDBC 4.0 support.
Java Compiler API
Upgrade of JAXB to version 2.0
Support for pluggable annotations
Many GUI improvements, such as integration of SwingWorker in the API, table sorting and filtering, and true Swing double-buffering (eliminating the gray-area effect).
JVM improvements include: synchronization and compiler performance optimizations, new algorithms and upgrades to existing garbage collection algorithms, and application start-up performance.
Java 6 can be installed to Mac OS X 10.5 (Leopard) running on 64-bit (Core 2 Duo and higher) processor machines.[54] Java 6 is also supported by both 32-bit and 64-bit machines running Mac OS X 10.6

Java 5 Features

Generic
Metadata
Autoboxing/unboxing
Enumerations
Varargs
Enhanced for each loop
Improved
Static imports
Improvements - Semantics of execution for multi-threaded Java programs
Improvements - Automatic stub generation for RMI objects
Improvements - Swing: New skinnable look and feel, called synth
Improvements - The concurrency utilities in package java.util.concurrent
Improvements - Scanner class for parsing data from various input streams and buffers

JDK 17 - What's new features in Java 17

Take a look at our suggested post on Java :

Quick glance on earlier Java Versions Features :

Java 14 Features - JDK 14

Java 13 Features - JDK 13

Java 12 Features

Java 11 Features

Java 10 Features

Java 9 Features

Java 8 Features

Java 7 Features

Java 6 Features

Java 5 Features

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